Chlorine is toxic. Fill cylinders only in the hood.
Sodium metal is highly reactive (reacting with both air and water). Keep it stored under oil.
Chemicals and Solutions:
glass deflagrating spoon
large hydrometer with glass square cover
forceps and knife
burner and matches
Before class fill the hydrometer with chlorine gas and cover.
Using forceps and a knife, cut a pea sized piece of sodium metal .
Place the sodium in the glass deflagrating spoon and melt it using a burner
(The oil should burn off the surface)
Place the deflagrating spoon of melted sodium in the chlorine and gently shake.
The orange glow of sodium reacting with chlorine will be seen.
Na + 1/2 Cl2 ---> NaCl -411 kJ/mole